Convenience function for analyze_plates(): plates whose treatment is
"control" (case-insensitive) or empty get plate_layout(centre = "none"),
all others the confrontation layout with a central bacterium.
layout_by_treatment(row, ...)One metadata row (data frame) or NULL.
Passed to plate_layout() (e.g. radius_mm = 20).
A mycohalo_layout.
layout_by_treatment(data.frame(treatment = "control"))
#> <mycohalo_layout> 4 fungal colonies; centre: none
#> id x_rel y_rel
#> TL -0.318 -0.318
#> TR 0.318 -0.318
#> BR 0.318 0.318
#> BL -0.318 0.318